Metal jamb strip



March 24, 1925. v 1,531,228

S. B. ZIMMER METAL JAMB STRIP Filed July'27, 1925 /4 IZYVEJY'IUE v SamudBZfzn Q ATTYS;

Patented Mar. 24, 1925 I I v i UNITED STATES PATENT OFFICE.

SAMUEL B. ZIMMER, or LOS ANGELES, CALIFORNIA. METAL JAMB STRIP.

, 7 Application filed July 27, 1923. SeriatNo. 654,185. 2'

To all whom it may concern: I I In Figs. 1 and 3, the metal j ainb strip is 7 Be it known that I, SAMUEL B. ZIMMER, provided witha flange 14, which is applied a citizen. of the United States, residing at to the back of the door-jainh 12 by fasten Los Angeles, in the county of Los Angeles ers such as nails 1 1". The metal jainh strips and State of California, have invented new may take any on of a number of moulded and useful Improvements in Metal Jamb shapes. Figs. 1, 2 and 5 show metal jainh Strips, of which the following is a specifistrips having rectangular portions as at 14, cation. while. Fig. 3 shows the employment of a This invention relates to improvements rounded portion 142 and Fig. i, the use of in wall plastering, when the plaster adjoins a combination of rectangular and rounded 6s a door jamb or window casing. An object portions as at 14 of my invention is to eliminate the setting All strips, however, are provided with aof furringstrips or grounds; Another 01)- turned over flange 15 forming the corner ject is to eliminate the setting of casings of 16. It is readily seei that the plasterer may 15 wall openings. To accomplish this I proeasily build his plaster out flush with the 70 vide a metal jamlo strip such as is hereincorner and to the desired depth, some after more fully described and claimed, plaster squeezing around in back of the reference being made to the accompanying flange 15, which upon hardening serves to drawing, in which: make the ja-inh strip solid with the wall. Fig. 1' is a horizontal section of a plas- It is also seen that these strips may be aptered wall adjoining a door-jamb, showing plied either where the adjoining plaster the. application of my metal jamh strips. forms a straight wall or forms a corner,

Fig. 2 is a view in perspective of the shown in Fig. 1. metal jainb strip of Fig. 1. As shown in Figs. 1- and 5, it may be de- Figs. 3, 4L and 5 are horizontal sections sirable to attach the. jamb strips after the showing modifiedforms of my metal jamb janib is set. In this case a wooden filler 18 strips. is provided as a core in the metal jamh Referring to the drawing in which siinistrip, and the nails 14 are driven through lar reference characters refer to similar the jamb strip 14 and filler 18 into the side 30 parts a wood block or brick 10 is set in the of the door jamb. wall 11 to provide a fastening means for The metal jainb strips serve as a finish setting the door jamb 12, held in position moulding at the juncture of plaster and with respect to the wall by a shim 13. door jamb, as well as a guide for the plas- In plastering up to the door jamh, I reterm as to the depth of his plaster. The

3.) place the grounds by metal janib strips 14. setting of the door ainb having attached which are attached to the door-jamb 12. thereto the metal jamb strips reduces the The metal amh strip 14, shown in Figures setting of the grounds and the setting of the 1 and 2, is formed of sheet metal and C0111: door jainb to a single operation, the jainb prises a flat flange 14:, a portion 1 extendbeing set to a true joining with the plaster.

4o ing outwardly at right angles from one Changes may he made within the spirit edge of the flange 14 a portion 2 extendof the inyention.

. ing from the portion 1 at. right angles in a hat is claimed is:

plane parallel with the flange 1 1 and in the 1. A amb strip formed of sheet metal opposite direction, a portion 3 extending and comprising a flange, a portion extend- 45 from the portion 2 parallel with the por ing at right angles from one edge of the 1 tion 1, a portion 4 extending from th porflange, a second portion extending at right tion 3 in line with the flange 14? and in the angles from the first portion, a third poropposite direction, a corner 16 at the outer tion extending at right angles from the edge of the portion, and a flange 15 exsecond portion parallel with the first por- 50 tending from the corner 16 at an angle of tion, a fourth portion extending at right about 45 degrees. The jamb strip forms a angles from the third portion in line with metal corner for the plaster and the molding the flange, a corner at the outer edge of the to join the plaster with the jamh 12, the fourth portion, a flange extending from the face of the plaster being at right angles to corner at an angle of about 45 degrees, said 55 the jainb. jamb strip being adapted to form a metal corner for plaster, and to form a molding between the plaster and a jamb set at right angles to the plaster.

2. A jamb strip formed of sheet metal and comprising a body portion, flanges extending in opposite directions from said body portion, one of said flanges serving as a nailing strip, the other of said flanges forming a corner by having a portion bent at an acute angle to the body of the last mentioned flange.

3. A jamb strip formed of sheet metal comprising a flange adapted to form a nailing strip, a body portion integral with said flange, a second flange integral with said body portion and parallel with the first mentioned flange, said second flange adapted to form a corner by having a portion bent at an acute angle to the body of said second flange.

4. A jamb strip formed of sheet metal comprising a body portion forming a corner molding, flanges integral With said body portion and extending in parallel and opposite directions, one of said flanges serving as a nailing strip and the other serving as a ground gage for plaster.

In testimony whereof I have signed my name to this specification.

SAMUEL B. ZIMMER. 

